Question

Give two situations where it is necessary to separate a mixture into its constituents.

Answer 1

It is necessary to separate a mixture into its constituents for the following situations:

1. Removing undesirable constituents: For example, it is desirable to remove small stones in rice, or separating tea leaves from tea.
2. To obtain useful substances: Butter is obtained by churning curds. In the same way, crude oil can be separated into various oils such as petrol, kerosene, diesel etc.